The "Media / Sounds" Special Folder
There are two ways to insert sound files: either through the menu Insert > Sound or through a link leading to a sound file previously imported into Media/Sounds.
The second option has the advantage of being compatible with all navigators and all computer platforms.
If you use a hyperlink, the sound will be played by the default sound player on the end user's computer. Here is a link to test an MP3 sound file.
When you insert a sound file into ThunderSite, it is automatically copied into a folder called "Media / Sounds".
Note that you can also insert a background sound.